/*****************************************************************************
 * libmp4.h : LibMP4 library for mp4 module for vlc
 *****************************************************************************
 * Copyright (C) 2001-2004, 2010 VLC authors and VideoLAN
 *
 * Authors: Laurent Aimar <fenrir@via.ecp.fr>
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation; either version 2.1 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
 *****************************************************************************/

#ifndef _VLC_MP4_H
#define _VLC_MP4_H 1

#include <vlc_es.h>

#define ATOM_root VLC_FOURCC( 'r', 'o', 'o', 't' )
#define ATOM_uuid VLC_FOURCC( 'u', 'u', 'i', 'd' )

#define ATOM_ftyp VLC_FOURCC( 'f', 't', 'y', 'p' )
#define ATOM_moov VLC_FOURCC( 'm', 'o', 'o', 'v' )
#define ATOM_foov VLC_FOURCC( 'f', 'o', 'o', 'v' )
#define ATOM_cmov VLC_FOURCC( 'c', 'm', 'o', 'v' )
#define ATOM_dcom VLC_FOURCC( 'd', 'c', 'o', 'm' )
#define ATOM_cmvd VLC_FOURCC( 'c', 'm', 'v', 'd' )

#define ATOM_moof VLC_FOURCC( 'm', 'o', 'o', 'f' )
#define ATOM_mdat VLC_FOURCC( 'm', 'd', 'a', 't' )
#define ATOM_skip VLC_FOURCC( 's', 'k', 'i', 'p' )
#define ATOM_free VLC_FOURCC( 'f', 'r', 'e', 'e' )
#define ATOM_udta VLC_FOURCC( 'u', 'd', 't', 'a' )
#define ATOM_wide VLC_FOURCC( 'w', 'i', 'd', 'e' )

#define ATOM_data VLC_FOURCC( 'd', 'a', 't', 'a' )

#define ATOM_trak VLC_FOURCC( 't', 'r', 'a', 'k' )
#define ATOM_mvhd VLC_FOURCC( 'm', 'v', 'h', 'd' )
#define ATOM_tkhd VLC_FOURCC( 't', 'k', 'h', 'd' )
#define ATOM_tref VLC_FOURCC( 't', 'r', 'e', 'f' )
#define ATOM_mdia VLC_FOURCC( 'm', 'd', 'i', 'a' )
#define ATOM_mdhd VLC_FOURCC( 'm', 'd', 'h', 'd' )
#define ATOM_hdlr VLC_FOURCC( 'h', 'd', 'l', 'r' )
#define ATOM_minf VLC_FOURCC( 'm', 'i', 'n', 'f' )
#define ATOM_vmhd VLC_FOURCC( 'v', 'm', 'h', 'd' )
#define ATOM_smhd VLC_FOURCC( 's', 'm', 'h', 'd' )
#define ATOM_hmhd VLC_FOURCC( 'h', 'm', 'h', 'd' )
#define ATOM_dinf VLC_FOURCC( 'd', 'i', 'n', 'f' )
#define ATOM_url  VLC_FOURCC( 'u', 'r', 'l', ' ' )
#define ATOM_urn  VLC_FOURCC( 'u', 'r', 'n', ' ' )
#define ATOM_dref VLC_FOURCC( 'd', 'r', 'e', 'f' )
#define ATOM_stbl VLC_FOURCC( 's', 't', 'b', 'l' )
#define ATOM_stts VLC_FOURCC( 's', 't', 't', 's' )
#define ATOM_ctts VLC_FOURCC( 'c', 't', 't', 's' )
#define ATOM_stsd VLC_FOURCC( 's', 't', 's', 'd' )
#define ATOM_stsz VLC_FOURCC( 's', 't', 's', 'z' )
#define ATOM_stz2 VLC_FOURCC( 's', 't', 'z', '2' )
#define ATOM_stsc VLC_FOURCC( 's', 't', 's', 'c' )
#define ATOM_stco VLC_FOURCC( 's', 't', 'c', 'o' )
#define ATOM_co64 VLC_FOURCC( 'c', 'o', '6', '4' )
#define ATOM_stss VLC_FOURCC( 's', 't', 's', 's' )
#define ATOM_stsh VLC_FOURCC( 's', 't', 's', 'h' )
#define ATOM_stdp VLC_FOURCC( 's', 't', 'd', 'p' )
#define ATOM_padb VLC_FOURCC( 'p', 'a', 'd', 'b' )
#define ATOM_edts VLC_FOURCC( 'e', 'd', 't', 's' )
#define ATOM_elst VLC_FOURCC( 'e', 'l', 's', 't' )
#define ATOM_mvex VLC_FOURCC( 'm', 'v', 'e', 'x' )
#define ATOM_sdtp VLC_FOURCC( 's', 'd', 't', 'p' )
#define ATOM_trex VLC_FOURCC( 't', 'r', 'e', 'x' )
#define ATOM_mehd VLC_FOURCC( 'm', 'e', 'h', 'd' )
#define ATOM_mfhd VLC_FOURCC( 'm', 'f', 'h', 'd' )
#define ATOM_traf VLC_FOURCC( 't', 'r', 'a', 'f' )
#define ATOM_sidx VLC_FOURCC( 's', 'i', 'd', 'x' )
#define ATOM_tfhd VLC_FOURCC( 't', 'f', 'h', 'd' )
#define ATOM_trun VLC_FOURCC( 't', 'r', 'u', 'n' )
#define ATOM_cprt VLC_FOURCC( 'c', 'p', 'r', 't' )
#define ATOM_iods VLC_FOURCC( 'i', 'o', 'd', 's' )
#define ATOM_pasp VLC_FOURCC( 'p', 'a', 's', 'p' )
#define ATOM_mfra VLC_FOURCC( 'm', 'f', 'r', 'a' )
#define ATOM_mfro VLC_FOURCC( 'm', 'f', 'r', 'o' )
#define ATOM_tfra VLC_FOURCC( 't', 'f', 'r', 'a' )

#define ATOM_nmhd VLC_FOURCC( 'n', 'm', 'h', 'd' )
#define ATOM_mp2v VLC_FOURCC( 'm', 'p', '2', 'v' )
#define ATOM_mp4v VLC_FOURCC( 'm', 'p', '4', 'v' )
#define ATOM_mp4a VLC_FOURCC( 'm', 'p', '4', 'a' )
#define ATOM_mp4s VLC_FOURCC( 'm', 'p', '4', 's' )
#define ATOM_vide VLC_FOURCC( 'v', 'i', 'd', 'e' )
#define ATOM_soun VLC_FOURCC( 's', 'o', 'u', 'n' )
#define ATOM_hint VLC_FOURCC( 'h', 'i', 'n', 't' )
#define ATOM_hdv2 VLC_FOURCC( 'h', 'd', 'v', '2' )

#define ATOM_dpnd VLC_FOURCC( 'd', 'p', 'n', 'd' )
#define ATOM_ipir VLC_FOURCC( 'i', 'p', 'i', 'r' )
#define ATOM_mpod VLC_FOURCC( 'm', 'p', 'o', 'd' )
#define ATOM_hnti VLC_FOURCC( 'h', 'n', 't', 'i' )
#define ATOM_rtp  VLC_FOURCC( 'r', 't', 'p', ' ' )

#define ATOM_isom VLC_FOURCC( 'i', 's', 'o', 'm' )
#define ATOM_3gp4 VLC_FOURCC( '3', 'g', 'p', '4' )
#define ATOM_esds VLC_FOURCC( 'e', 's', 'd', 's' )

#define ATOM__mp3 VLC_FOURCC( '.', 'm', 'p', '3' )
#define ATOM_ms02 VLC_FOURCC( 'm', 's', 0x0, 0x02 )
#define ATOM_ms11 VLC_FOURCC( 'm', 's', 0x0, 0x11 )
#define ATOM_ms55 VLC_FOURCC( 'm', 's', 0x0, 0x55 )
#define ATOM_twos VLC_FOURCC( 't', 'w', 'o', 's' )
#define ATOM_sowt VLC_FOURCC( 's', 'o', 'w', 't' )
#define ATOM_QDMC VLC_FOURCC( 'Q', 'D', 'M', 'C' )
#define ATOM_QDM2 VLC_FOURCC( 'Q', 'D', 'M', '2' )
#define ATOM_ima4 VLC_FOURCC( 'i', 'm', 'a', '4' )
#define ATOM_IMA4 VLC_FOURCC( 'I', 'M', 'A', '4' )
#define ATOM_dvi  VLC_FOURCC( 'd', 'v', 'i', ' ' )
#define ATOM_MAC3 VLC_FOURCC( 'M', 'A', 'C', '3' )
#define ATOM_MAC6 VLC_FOURCC( 'M', 'A', 'C', '6' )
#define ATOM_alaw VLC_FOURCC( 'a', 'l', 'a', 'w' )
#define ATOM_ulaw VLC_FOURCC( 'u', 'l', 'a', 'w' )
#define ATOM_Qclp VLC_FOURCC( 'Q', 'c', 'l', 'p' )
#define ATOM_samr VLC_FOURCC( 's', 'a', 'm', 'r' )
#define ATOM_sawb VLC_FOURCC( 's', 'a', 'w', 'b' )
#define ATOM_OggS VLC_FOURCC( 'O', 'g', 'g', 'S' )
#define ATOM_alac VLC_FOURCC( 'a', 'l', 'a', 'c' )
#define ATOM_dac3 VLC_FOURCC( 'd', 'a', 'c', '3' )
#define ATOM_dec3 VLC_FOURCC( 'd', 'e', 'c', '3' )
#define ATOM_dvc1 VLC_FOURCC( 'd', 'v', 'c', '1' )
#define ATOM_enda VLC_FOURCC( 'e', 'n', 'd', 'a' )
#define ATOM_gnre VLC_FOURCC( 'g', 'n', 'r', 'e' )
#define ATOM_trkn VLC_FOURCC( 't', 'r', 'k', 'n' )

#define ATOM_zlib VLC_FOURCC( 'z', 'l', 'i', 'b' )
#define ATOM_SVQ1 VLC_FOURCC( 'S', 'V', 'Q', '1' )
#define ATOM_SVQ3 VLC_FOURCC( 'S', 'V', 'Q', '3' )
#define ATOM_ZyGo VLC_FOURCC( 'Z', 'y', 'G', 'o' )
#define ATOM_3IV1 VLC_FOURCC( '3', 'I', 'V', '1' )
#define ATOM_3iv1 VLC_FOURCC( '3', 'i', 'v', '1' )
#define ATOM_3IV2 VLC_FOURCC( '3', 'I', 'V', '2' )
#define ATOM_3iv2 VLC_FOURCC( '3', 'i', 'v', '2' )
#define ATOM_3IVD VLC_FOURCC( '3', 'I', 'V', 'D' )
#define ATOM_3ivd VLC_FOURCC( '3', 'i', 'v', 'd' )
#define ATOM_3VID VLC_FOURCC( '3', 'V', 'I', 'D' )
#define ATOM_3vid VLC_FOURCC( '3', 'v', 'i', 'd' )
#define ATOM_h263 VLC_FOURCC( 'h', '2', '6', '3' )
#define ATOM_s263 VLC_FOURCC( 's', '2', '6', '3' )
#define ATOM_DIVX VLC_FOURCC( 'D', 'I', 'V', 'X' )
#define ATOM_XVID VLC_FOURCC( 'X', 'V', 'I', 'D' )
#define ATOM_cvid VLC_FOURCC( 'c', 'v', 'i', 'd' )
#define ATOM_mjpa VLC_FOURCC( 'm', 'j', 'p', 'a' )
#define ATOM_mjpb VLC_FOURCC( 'm', 'j', 'q', 't' )
#define ATOM_mjqt VLC_FOURCC( 'm', 'j', 'h', 't' )
#define ATOM_mjht VLC_FOURCC( 'm', 'j', 'p', 'b' )
#define ATOM_VP31 VLC_FOURCC( 'V', 'P', '3', '1' )
#define ATOM_vp31 VLC_FOURCC( 'v', 'p', '3', '1' )
#define ATOM_h264 VLC_FOURCC( 'h', '2', '6', '4' )
#define ATOM_qdrw VLC_FOURCC( 'q', 'd', 'r', 'w' )

#define ATOM_avc1 VLC_FOURCC( 'a', 'v', 'c', '1' )
#define ATOM_avcC VLC_FOURCC( 'a', 'v', 'c', 'C' )
#define ATOM_m4ds VLC_FOURCC( 'm', '4', 'd', 's' )

#define ATOM_dvc  VLC_FOURCC( 'd', 'v', 'c', ' ' )
#define ATOM_dvp  VLC_FOURCC( 'd', 'v', 'p', ' ' )
#define ATOM_dv5n VLC_FOURCC( 'd', 'v', '5', 'n' )
#define ATOM_dv5p VLC_FOURCC( 'd', 'v', '5', 'p' )
#define ATOM_raw  VLC_FOURCC( 'r', 'a', 'w', ' ' )

#define ATOM_jpeg VLC_FOURCC( 'j', 'p', 'e', 'g' )

#define ATOM_yv12 VLC_FOURCC( 'y', 'v', '1', '2' )
#define ATOM_yuv2 VLC_FOURCC( 'y', 'u', 'v', '2' )

#define ATOM_rmra VLC_FOURCC( 'r', 'm', 'r', 'a' )
#define ATOM_rmda VLC_FOURCC( 'r', 'm', 'd', 'a' )
#define ATOM_rdrf VLC_FOURCC( 'r', 'd', 'r', 'f' )
#define ATOM_rmdr VLC_FOURCC( 'r', 'm', 'd', 'r' )
#define ATOM_rmvc VLC_FOURCC( 'r', 'm', 'v', 'c' )
#define ATOM_rmcd VLC_FOURCC( 'r', 'm', 'c', 'd' )
#define ATOM_rmqu VLC_FOURCC( 'r', 'm', 'q', 'u' )
#define ATOM_alis VLC_FOURCC( 'a', 'l', 'i', 's' )

#define ATOM_gmhd VLC_FOURCC( 'g', 'm', 'h', 'd' )
#define ATOM_wave VLC_FOURCC( 'w', 'a', 'v', 'e' )

#define ATOM_drms VLC_FOURCC( 'd', 'r', 'm', 's' )
#define ATOM_sinf VLC_FOURCC( 's', 'i', 'n', 'f' )
#define ATOM_schi VLC_FOURCC( 's', 'c', 'h', 'i' )
#define ATOM_user VLC_FOURCC( 'u', 's', 'e', 'r' )
#define ATOM_key  VLC_FOURCC( 'k', 'e', 'y', ' ' )
#define ATOM_iviv VLC_FOURCC( 'i', 'v', 'i', 'v' )
#define ATOM_name VLC_FOURCC( 'n', 'a', 'm', 'e' )
#define ATOM_priv VLC_FOURCC( 'p', 'r', 'i', 'v' )
#define ATOM_drmi VLC_FOURCC( 'd', 'r', 'm', 'i' )
#define ATOM_frma VLC_FOURCC( 'f', 'r', 'm', 'a' )
#define ATOM_skcr VLC_FOURCC( 's', 'k', 'c', 'r' )

#define ATOM_text VLC_FOURCC( 't', 'e', 'x', 't' )
#define ATOM_tx3g VLC_FOURCC( 't', 'x', '3', 'g' )
#define ATOM_subp VLC_FOURCC( 's', 'u', 'b', 'p' )
#define ATOM_sbtl VLC_FOURCC( 's', 'b', 't', 'l' )

#define ATOM_0xa9nam VLC_FOURCC( 0xa9, 'n', 'a', 'm' )
#define ATOM_0xa9aut VLC_FOURCC( 0xa9, 'a', 'u', 't' )
#define ATOM_0xa9cpy VLC_FOURCC( 0xa9, 'c', 'p', 'y' )
#define ATOM_0xa9inf VLC_FOURCC( 0xa9, 'i', 'n', 'f' )
#define ATOM_0xa9ART VLC_FOURCC( 0xa9, 'A', 'R', 'T' )
#define ATOM_0xa9des VLC_FOURCC( 0xa9, 'd', 'e', 's' )
#define ATOM_0xa9dir VLC_FOURCC( 0xa9, 'd', 'i', 'r' )
#define ATOM_0xa9cmt VLC_FOURCC( 0xa9, 'c', 'm', 't' )
#define ATOM_0xa9req VLC_FOURCC( 0xa9, 'r', 'e', 'q' )
#define ATOM_0xa9day VLC_FOURCC( 0xa9, 'd', 'a', 'y' )
#define ATOM_0xa9fmt VLC_FOURCC( 0xa9, 'f', 'm', 't' )
#define ATOM_0xa9prd VLC_FOURCC( 0xa9, 'p', 'r', 'd' )
#define ATOM_0xa9prf VLC_FOURCC( 0xa9, 'p', 'r', 'f' )
#define ATOM_0xa9src VLC_FOURCC( 0xa9, 's', 'r', 'c' )
#define ATOM_0xa9alb VLC_FOURCC( 0xa9, 'a', 'l', 'b' )
#define ATOM_0xa9dis VLC_FOURCC( 0xa9, 'd', 'i', 's' )
#define ATOM_0xa9enc VLC_FOURCC( 0xa9, 'e', 'n', 'c' )
#define ATOM_0xa9trk VLC_FOURCC( 0xa9, 't', 'r', 'k' )
#define ATOM_0xa9url VLC_FOURCC( 0xa9, 'u', 'r', 'l' )
#define ATOM_0xa9dsa VLC_FOURCC( 0xa9, 'd', 's', 'a' )
#define ATOM_0xa9hst VLC_FOURCC( 0xa9, 'h', 's', 't' )
#define ATOM_0xa9ope VLC_FOURCC( 0xa9, 'o', 'p', 'e' )
#define ATOM_0xa9wrt VLC_FOURCC( 0xa9, 'w', 'r', 't' )
#define ATOM_0xa9com VLC_FOURCC( 0xa9, 'c', 'o', 'm' )
#define ATOM_0xa9gen VLC_FOURCC( 0xa9, 'g', 'e', 'n' )
#define ATOM_0xa9too VLC_FOURCC( 0xa9, 't', 'o', 'o' )
#define ATOM_0xa9wrn VLC_FOURCC( 0xa9, 'w', 'r', 'n' )
#define ATOM_0xa9swr VLC_FOURCC( 0xa9, 's', 'w', 'r' )
#define ATOM_0xa9mak VLC_FOURCC( 0xa9, 'm', 'a', 'k' )
#define ATOM_0xa9mod VLC_FOURCC( 0xa9, 'm', 'o', 'd' )
#define ATOM_0xa9PRD VLC_FOURCC( 0xa9, 'P', 'R', 'D' )
#define ATOM_0xa9grp VLC_FOURCC( 0xa9, 'g', 'r', 'p' )
#define ATOM_0xa9lyr VLC_FOURCC( 0xa9, 'l', 'y', 'r' )
#define ATOM_0xa9gen VLC_FOURCC( 0xa9, 'g', 'e', 'n' )
#define ATOM_0xa9st3 VLC_FOURCC( 0xa9, 's', 't', '3' )
#define ATOM_0xa9ard VLC_FOURCC( 0xa9, 'a', 'r', 'd' )
#define ATOM_0xa9arg VLC_FOURCC( 0xa9, 'a', 'r', 'g' )
#define ATOM_0xa9cak VLC_FOURCC( 0xa9, 'c', 'a', 'k' )
#define ATOM_0xa9con VLC_FOURCC( 0xa9, 'c', 'o', 'n' )
#define ATOM_0xa9des VLC_FOURCC( 0xa9, 'd', 'e', 's' )
#define ATOM_0xa9lnt VLC_FOURCC( 0xa9, 'l', 'n', 't' )
#define ATOM_0xa9phg VLC_FOURCC( 0xa9, 'p', 'h', 'g' )
#define ATOM_0xa9pub VLC_FOURCC( 0xa9, 'p', 'u', 'b' )
#define ATOM_0xa9sne VLC_FOURCC( 0xa9, 's', 'n', 'e' )
#define ATOM_0xa9sol VLC_FOURCC( 0xa9, 's', 'o', 'l' )
#define ATOM_0xa9thx VLC_FOURCC( 0xa9, 't', 'h', 'x' )
#define ATOM_0xa9xpd VLC_FOURCC( 0xa9, 'x', 'p', 'd' )
#define ATOM_chpl VLC_FOURCC( 'c', 'h', 'p', 'l' )
#define ATOM_WLOC VLC_FOURCC( 'W', 'L', 'O', 'C' )

#define ATOM_meta VLC_FOURCC( 'm', 'e', 't', 'a' )
#define ATOM_ilst VLC_FOURCC( 'i', 'l', 's', 't' )

#define ATOM_chap VLC_FOURCC( 'c', 'h', 'a', 'p' )

/* Do you want some debug information on all read boxes ? */
#ifndef NDEBUG
# define MP4_VERBOSE  1
#endif

struct MP4_Box_s;


/* uuid Universal Unique IDentifiers */
typedef struct UUID_s
{
    uint8_t b[16];
} UUID_t;

/* specific structure for all boxes */

typedef struct MP4_Box_data_tfxd_s
{
    uint8_t  i_version;
    uint32_t i_flags;

    uint64_t i_fragment_duration;
    uint64_t i_fragment_abs_time;

} MP4_Box_data_tfxd_t;

typedef struct TfrfBoxDataFields_s
{
    uint64_t i_fragment_duration;
    uint64_t i_fragment_abs_time;

} TfrfBoxDataFields_t;

typedef struct MP4_Box_data_tfrf_s
{
    uint8_t  i_version;
    uint8_t  i_fragment_count;
    uint32_t i_flags;

    TfrfBoxDataFields_t *p_tfrf_data_fields;

} MP4_Box_data_tfrf_t;

typedef struct MP4_Box_data_ftyp_s
{
    uint32_t i_major_brand;
    uint32_t i_minor_version;

    uint32_t i_compatible_brands_count;
    uint32_t *i_compatible_brands;

} MP4_Box_data_ftyp_t;

typedef struct MP4_Box_data_mvhd_s
{
    uint8_t  i_version;
    uint32_t i_flags;

    uint64_t i_creation_time;
    uint64_t i_modification_time;
    uint32_t i_timescale;
    uint64_t i_duration;

    int32_t  i_rate;
    int16_t  i_volume;
    int16_t  i_reserved1;
    uint32_t i_reserved2[2];
    int32_t  i_matrix[9];
    uint32_t i_predefined[6];
    uint32_t i_next_track_id;

} MP4_Box_data_mvhd_t;

#define MP4_TRACK_ENABLED    0x000001
#define MP4_TRACK_IN_MOVIE   0x000002
#define MP4_TRACK_IN_PREVIEW 0x000004
typedef struct MP4_Box_data_tkhd_s
{
    uint8_t  i_version;
    uint32_t i_flags;

    uint64_t i_creation_time;
    uint64_t i_modification_time;
    uint32_t i_track_ID;
    uint32_t i_reserved;
    uint64_t i_duration;

    uint32_t i_reserved2[2];
    int16_t  i_layer;
    int16_t  i_predefined;

    int16_t  i_volume;
    uint16_t i_reserved3;
    int32_t  i_matrix[9];
    int32_t  i_width;
    int32_t  i_height;
    float    f_rotation;

} MP4_Box_data_tkhd_t;

typedef struct MP4_Box_data_mdhd_s
{
    uint8_t  i_version;
    uint32_t i_flags;

    uint64_t i_creation_time;
    uint64_t i_modification_time;
    uint32_t i_timescale;
    uint64_t i_duration;

    /* one bit for pad */
    uint16_t      i_language_code;
    /* unsigned int(5)[3] language difference with 0x60*/
    unsigned char i_language[3];
    uint16_t i_predefined;

} MP4_Box_data_mdhd_t;

typedef struct MP4_Box_data_hdlr_s
{
    uint8_t  i_version;
    uint32_t i_flags;

    uint32_t i_predefined;
    uint32_t i_handler_type; /* "vide" "soun" "hint" "odsm"
                           "crsm" "sdsm" "m7sm" "ocsm"
                           "ipsm" "mjsm" */

    unsigned char *psz_name; /* in UTF-8 */

} MP4_Box_data_hdlr_t;

typedef struct MP4_Box_data_vmhd_s
{
    uint8_t  i_version;
    uint32_t i_flags;

    int16_t  i_graphics_mode;
    int16_t  i_opcolor[3];

} MP4_Box_data_vmhd_t;

typedef struct MP4_Box_data_smhd_s
{
    uint8_t  i_version;
    uint32_t i_flags;

    int16_t  i_balance;
    int16_t  i_reserved;

} MP4_Box_data_smhd_t;

typedef struct MP4_Box_data_hmhd_s
{
    uint8_t  i_version;
    uint32_t i_flags;

    uint16_t i_max_PDU_size;
    uint16_t i_avg_PDU_size;
    uint32_t i_max_bitrate;
    uint32_t i_avg_bitrate;
    uint32_t i_reserved;

} MP4_Box_data_hmhd_t;

typedef struct MP4_Box_data_url_s
{
    uint8_t  i_version;
    uint32_t i_flags;

    char *psz_location;

} MP4_Box_data_url_t;

typedef struct MP4_Box_data_urn_s
{
    uint8_t  i_version;
    uint32_t i_flags;

    char *psz_name;
    char *psz_location;

} MP4_Box_data_urn_t;

typedef struct MP4_Box_data_dref_s
{
    uint8_t  i_version;
    uint32_t i_flags;

    uint32_t i_entry_count;
/* XXX it's also a container with i_entry_count entry */
} MP4_Box_data_dref_t;

typedef struct MP4_Box_data_stts_s
{
    uint8_t  i_version;
    uint32_t i_flags;

    uint32_t i_entry_count;
    uint32_t *i_sample_count; /* these are array */
    int32_t  *i_sample_delta;

} MP4_Box_data_stts_t;

typedef struct MP4_Box_data_ctts_s
{
    uint8_t  i_version;
    uint32_t i_flags;

    uint32_t i_entry_count;

    uint32_t *i_sample_count; /* these are array */
    int32_t  *i_sample_offset;

} MP4_Box_data_ctts_t;


typedef struct MP4_Box_data_sample_soun_s
{
    uint8_t  i_reserved1[6];
    uint16_t i_data_reference_index;

    //uint32_t i_reserved2[2];
    uint16_t i_qt_version;
    uint16_t i_qt_revision_level;
    uint32_t i_qt_vendor;

    uint16_t i_channelcount;
    uint16_t i_samplesize;
    uint16_t i_predefined;
    uint16_t i_reserved3;
    uint16_t i_sampleratehi; /* timescale of track */
    uint16_t i_sampleratelo;

    /* for version 1 (i_reserved1[0] == 1) */
    uint32_t i_sample_per_packet;
    uint32_t i_bytes_per_packet;
    uint32_t i_bytes_per_frame;
    uint32_t i_bytes_per_sample;

    /* XXX hack */
    int     i_qt_description;
    uint8_t *p_qt_description;

} MP4_Box_data_sample_soun_t;

typedef struct MP4_Box_data_sample_vide_s
{
    uint8_t  i_reserved1[6];
    uint16_t i_data_reference_index;

    uint16_t i_qt_version;
    uint16_t i_qt_revision_level;
    uint32_t i_qt_vendor;

    uint32_t i_qt_temporal_quality;
    uint32_t i_qt_spatial_quality;

    int16_t  i_width;
    int16_t  i_height;

    uint32_t i_horizresolution;
    uint32_t i_vertresolution;

    uint32_t i_qt_data_size;
    uint16_t i_qt_frame_count;

    uint8_t  i_compressorname[32];
    int16_t  i_depth;

    int16_t  i_qt_color_table;

    /* XXX hack ImageDescription */
    int     i_qt_image_description;
    uint8_t *p_qt_image_description;

} MP4_Box_data_sample_vide_t;

#define MP4_TEXT_DISPLAY_FLAG_DONT_DISPLAY       (1<<0)
#define MP4_TEXT_DISPLAY_FLAG_AUTO_SCALE         (1<<1)
#define MP4_TEXT_DISPLAY_FLAG_CLIP_TO_TEXT_BOX   (1<<2)
#define MP4_TEXT_DISPLAY_FLAG_USE_MOVIE_BG_COLOR (1<<3)
#define MP4_TEXT_DISPLAY_FLAG_SHRINK_TEXT_BOX_TO_FIT (1<<4)
#define MP4_TEXT_DISPLAY_FLAG_SCROLL_IN          (1<<5)
#define MP4_TEXT_DISPLAY_FLAG_SCROLL_OUT         (1<<6)
#define MP4_TEXT_DISPLAY_FLAG_HORIZONTAL_SCROLL  (1<<7)
#define MP4_TEXT_DISPLAY_FLAG_REVERSE_SCROLL     (1<<8)
#define MP4_TEXT_DISPLAY_FLAG_CONTINUOUS_SCROLL  (1<<9)
#define MP4_TEXT_DISPLAY_FLAG_FLOW_HORIZONTAL    (1<<10)
#define MP4_TEXT_DISPLAY_FLAG_CONTINUOUS_KARAOKE (1<<11)
#define MP4_TEXT_DISPLAY_FLAG_DROP_SHADOW        (1<<12)
#define MP4_TEXT_DISPLAY_FLAG_ANTI_ALIAS         (1<<13)
#define MP4_TEXT_DISPLAY_FLAG_KEYED_TEXT         (1<<14)
#define MP4_TEXT_DISPLAY_FLAG_INVERSE_HILITE     (1<<15)
#define MP4_TEXT_DISPLAY_FLAG_COLOR_HILITE       (1<<16)
#define MP4_TEXT_DISPLAY_FLAG_WRITE_VERTICALLY   (1<<17)

typedef struct
{
    uint32_t i_reserved1;
    uint16_t i_reserved2;

    uint16_t i_data_reference_index;

    uint32_t i_display_flags;   // TextDescription and Tx3gDescription

    int8_t i_justification_horizontal; // left(0), centered(1), right(-1)
    int8_t i_justification_vertical;   // top(0), centered(1), bottom(-1)

    uint16_t i_background_color[4];

    uint16_t i_text_box_top;
    uint16_t i_text_box_left;
    uint16_t i_text_box_bottom;
    uint16_t i_text_box_right;

    // TODO to complete
} MP4_Box_data_sample_text_t;

typedef struct MP4_Box_data_sample_hint_s
{
    uint8_t  i_reserved1[6];
    uint16_t i_data_reference_index;

    uint8_t *p_data;

} MP4_Box_data_sample_hint_t;

typedef struct MP4_Box_data_moviehintinformation_rtp_s
{
    uint32_t i_description_format;
    unsigned char *psz_text;

} MP4_Box_data_moviehintinformation_rtp_t;



typedef struct MP4_Box_data_stsd_s
{
    uint8_t  i_version;
    uint32_t i_flags;

    uint32_t i_entry_count;

    /* it contains SampleEntry handled as if it was Box */

} MP4_Box_data_stsd_t;


typedef struct MP4_Box_data_stsz_s
{
    uint8_t  i_version;
    uint32_t i_flags;

    uint32_t i_sample_size;
    uint32_t i_sample_count;

    uint32_t *i_entry_size; /* array , empty if i_sample_size != 0 */

} MP4_Box_data_stsz_t;

typedef struct MP4_Box_data_stz2_s
{
    uint8_t  i_version;
    uint32_t i_flags;

    uint32_t i_sample_size; /* 24 bits */
    uint8_t  i_field_size;
    uint32_t i_sample_count;

    uint32_t *i_entry_size; /* array: unsigned int(i_field_size) entry_size */

} MP4_Box_data_stz2_t;

typedef struct MP4_Box_data_stsc_s
{
    uint8_t  i_version;
    uint32_t i_flags;

    uint32_t i_entry_count;

    uint32_t *i_first_chunk; /* theses are arrays */
    uint32_t *i_samples_per_chunk;
    uint32_t *i_sample_description_index;

} MP4_Box_data_stsc_t;


typedef struct MP4_Box_data_co64_s
{
    uint8_t  i_version;
    uint32_t i_flags;

    uint32_t i_entry_count;

    uint64_t *i_chunk_offset;

} MP4_Box_data_co64_t;


typedef struct MP4_Box_data_stss_s
{
    uint8_t  i_version;
    uint32_t i_flags;

    uint32_t i_entry_count;

    uint32_t *i_sample_number;

} MP4_Box_data_stss_t;

typedef struct MP4_Box_data_stsh_s
{
    uint8_t  i_version;
    uint32_t i_flags;

    uint32_t i_entry_count;

    uint32_t *i_shadowed_sample_number;
    uint32_t *i_sync_sample_number;

} MP4_Box_data_stsh_t;

typedef struct MP4_Box_data_stdp_s
{
    uint8_t  i_version;
    uint32_t i_flags;

    uint16_t *i_priority;

} MP4_Box_data_stdp_t;

typedef struct MP4_Box_data_padb_s
{
    uint8_t  i_version;
    uint32_t i_flags;

    uint32_t i_sample_count;

    uint16_t *i_reserved1;   /* 1bit  */
    uint16_t *i_pad2;        /* 3bits */
    uint16_t *i_reserved2;   /* 1bit  */
    uint16_t *i_pad1;        /* 3bits */


} MP4_Box_data_padb_t;


typedef struct MP4_Box_data_elst_s
{
    uint8_t  i_version;
    uint32_t i_flags;

    uint32_t i_entry_count;

    uint64_t *i_segment_duration;
    int64_t  *i_media_time;
    uint16_t *i_media_rate_integer;
    uint16_t *i_media_rate_fraction;


} MP4_Box_data_elst_t;

typedef struct MP4_Box_data_cprt_s
{
    uint8_t  i_version;
    uint32_t i_flags;
    /* 1 pad bit */
    unsigned char i_language[3];

    char *psz_notice;
} MP4_Box_data_cprt_t;


/* DecoderConfigDescriptor */
typedef struct MP4_descriptor_decoder_config_s
{
    uint8_t i_objectTypeIndication;
    uint8_t i_streamType;
    int     b_upStream;
    int     i_buffer_sizeDB;
    int     i_max_bitrate;
    int     i_avg_bitrate;

    int     i_decoder_specific_info_len;
    uint8_t *p_decoder_specific_info;
    /* some other stuff */

} MP4_descriptor_decoder_config_t;

typedef struct MP4_descriptor_SL_config_s
{

    int i_dummy; /* ANSI C forbids empty structures */

} MP4_descriptor_SL_config_t;


typedef struct MP4_descriptor_ES_s
{
    uint16_t i_ES_ID;
    int      b_stream_dependence;
    int      b_url;
    int      b_OCRstream;
    int      i_stream_priority;

    int      i_depend_on_ES_ID; /* if b_stream_dependence set */

    unsigned char *psz_URL;

    uint16_t i_OCR_ES_ID;       /* if b_OCRstream */
    MP4_descriptor_decoder_config_t *p_decConfigDescr;

    MP4_descriptor_SL_config_t *p_slConfigDescr;

    /* some other stuff ... */

} MP4_descriptor_ES_t;

/* ES descriptor */
typedef struct MP4_Box_data_esds_s
{
    uint8_t  i_version;
    uint32_t i_flags;

    MP4_descriptor_ES_t es_descriptor;

} MP4_Box_data_esds_t;


typedef struct MP4_Box_data_dcom_s
{
    uint32_t i_algorithm; /* fourcc */

} MP4_Box_data_dcom_t;

typedef struct MP4_Box_data_cmvd_s
{
    uint32_t i_uncompressed_size;
    uint32_t i_compressed_size;

    int     b_compressed; /* Set to 1 if compressed data, 0 if uncompressed */
    uint8_t *p_data;

} MP4_Box_data_cmvd_t;

typedef struct MP4_Box_data_cmov_s
{
    struct MP4_Box_s *p_moov; /* uncompressed moov */

} MP4_Box_data_cmov_t;

typedef struct
{
    uint32_t i_type;
} MP4_Box_data_frma_t;

typedef struct
{
    uint32_t i_init;
    uint32_t i_encr;
    uint32_t i_decr;
} MP4_Box_data_skcr_t;

typedef struct
{
    uint8_t  i_version;
    uint32_t i_flags;

    uint32_t i_ref_type;
    char     *psz_ref;

} MP4_Box_data_rdrf_t;

typedef struct
{
    uint8_t  i_version;
    uint32_t i_flags;

    uint32_t i_rate;

} MP4_Box_data_rmdr_t;

typedef struct
{
    uint8_t  i_version;
    uint32_t i_flags;

    uint32_t i_gestaltType;
    uint32_t i_val1;
    uint32_t i_val2;
    uint16_t i_checkType;   /* 0: val1 is version min
                               1: gestalt value & val2 == val1 */

} MP4_Box_data_rmvc_t;

typedef struct
{
    uint8_t  i_version;
    uint32_t i_flags;


} MP4_Box_data_rmcd_t;

typedef struct
{
    uint32_t i_quality;

} MP4_Box_data_rmqu_t;

typedef struct MP4_Box_data_mfhd_s
{
    uint8_t  i_version;
    uint32_t i_flags;

    uint32_t i_sequence_number;

} MP4_Box_data_mfhd_t;

typedef struct MP4_Box_sidx_item_s
{
    bool     b_reference_type;
    uint32_t i_referenced_size;
    uint32_t i_subsegment_duration;
    bool     b_starts_with_SAP;
    uint8_t  i_SAP_type;
    uint32_t i_SAP_delta_time;

} MP4_Box_sidx_item_t;

typedef struct MP4_Box_data_sidx_s
{
    uint8_t  i_version;
    uint32_t i_flags;

    uint32_t i_reference_ID;
    uint32_t i_timescale;
    uint64_t i_earliest_presentation_time;
    uint64_t i_first_offset;
    uint16_t i_reference_count;

    MP4_Box_sidx_item_t *p_items;

} MP4_Box_data_sidx_t;

#define MP4_TFHD_BASE_DATA_OFFSET     (1LL<<0)
#define MP4_TFHD_SAMPLE_DESC_INDEX    (1LL<<1)
#define MP4_TFHD_DFLT_SAMPLE_DURATION (1LL<<3)
#define MP4_TFHD_DFLT_SAMPLE_SIZE     (1LL<<4)
#define MP4_TFHD_DFLT_SAMPLE_FLAGS    (1LL<<5)
#define MP4_TFHD_DURATION_IS_EMPTY    (1LL<<16)
typedef struct MP4_Box_data_tfhd_s
{
    uint8_t  i_version;
    bool     b_empty;
    uint32_t i_flags;
    uint32_t i_track_ID;

    /* optional fields */
    uint64_t i_base_data_offset;
    uint32_t i_sample_description_index;
    uint32_t i_default_sample_duration;
    uint32_t i_default_sample_size;
    uint32_t i_default_sample_flags;

} MP4_Box_data_tfhd_t;

#define MP4_TRUN_DATA_OFFSET         (1<<0)
#define MP4_TRUN_FIRST_FLAGS         (1<<2)
#define MP4_TRUN_SAMPLE_DURATION     (1<<8)
#define MP4_TRUN_SAMPLE_SIZE         (1<<9)
#define MP4_TRUN_SAMPLE_FLAGS        (1<<10)
#define MP4_TRUN_SAMPLE_TIME_OFFSET  (1<<11)
typedef struct MP4_descriptor_trun_sample_t
{
    uint32_t i_duration;
    uint32_t i_size;
    uint32_t i_flags;
    uint32_t i_composition_time_offset;
} MP4_descriptor_trun_sample_t;

typedef struct MP4_Box_data_trun_s
{
    uint8_t  i_version;
    uint32_t i_flags;
    uint32_t i_sample_count;

    /* optional fields */
    int32_t i_data_offset;
    uint32_t i_first_sample_flags;

    MP4_descriptor_trun_sample_t *p_samples;

} MP4_Box_data_trun_t;


typedef struct
{
    char *psz_text;

} MP4_Box_data_0xa9xxx_t;

typedef struct
{
    char *psz_text;

} MP4_Box_data_name_t;

typedef struct
{
    uint32_t i_entry_count;
    uint32_t *i_track_ID;

} MP4_Box_data_tref_generic_t;

typedef struct
{
    uint8_t  i_version;
    uint32_t i_flags;

    uint8_t i_chapter;
    struct
    {
        char    *psz_name;
        int64_t  i_start;
    } chapter[256];
} MP4_Box_data_chpl_t;

typedef struct
{
    uint8_t i_version;
    uint8_t i_profile;
    uint8_t i_profile_compatibility;
    uint8_t i_level;

    uint8_t i_reserved1;     /* 6 bits */
    uint8_t i_length_size;

    uint8_t i_reserved2;    /* 3 bits */
    uint8_t  i_sps;
    uint16_t *i_sps_length;
    uint8_t  **sps;

    uint8_t  i_pps;
    uint16_t *i_pps_length;
    uint8_t  **pps;

    /* XXX: Hack raw avcC atom payload */
    int     i_avcC;
    uint8_t *p_avcC;

} MP4_Box_data_avcC_t;

typedef struct
{
    uint8_t i_fscod;
    uint8_t i_bsid;
    uint8_t i_bsmod;
    uint8_t i_acmod;
    uint8_t i_lfeon;
    uint8_t i_bitrate_code;

} MP4_Box_data_dac3_t;

typedef struct
{
    uint8_t i_profile_level;

    int i_vc1;
    uint8_t *p_vc1;

} MP4_Box_data_dvc1_t;

typedef struct
{
    uint16_t i_little_endian;

} MP4_Box_data_enda_t;

typedef struct
{
    uint16_t i_genre;

} MP4_Box_data_gnre_t;

typedef struct
{
    uint32_t i_track_number;
    uint32_t i_track_total;

} MP4_Box_data_trkn_t;

typedef struct
{
    uint8_t  i_version;
    uint32_t i_flags;

    uint16_t i_object_descriptor;
    uint8_t i_OD_profile_level;
    uint8_t i_scene_profile_level;
    uint8_t i_audio_profile_level;
    uint8_t i_visual_profile_level;
    uint8_t i_graphics_profile_level;

} MP4_Box_data_iods_t;

typedef struct
{
    uint32_t i_horizontal_spacing;
    uint32_t i_vertical_spacing;
} MP4_Box_data_pasp_t;

typedef struct
{
    uint8_t  i_version;
    uint32_t i_flags;

    uint64_t i_fragment_duration;
} MP4_Box_data_mehd_t;

typedef struct
{
    uint8_t  i_version;
    uint32_t i_flags;

    uint32_t i_track_ID;
    uint32_t i_default_sample_description_index;
    uint32_t i_default_sample_duration;
    uint32_t i_default_sample_size;
    uint32_t i_default_sample_flags;
} MP4_Box_data_trex_t;

typedef struct
{
    uint8_t  i_version;
    uint32_t i_flags;

    uint8_t *p_sample_table;
} MP4_Box_data_sdtp_t;

typedef struct
{
    uint8_t  i_version;
    uint32_t i_flags;

    uint32_t i_size;
} MP4_Box_data_mfro_t;

typedef struct
{
    uint8_t  i_version;
    uint32_t i_flags;

    uint32_t i_track_ID;
    uint32_t i_number_of_entries;

    uint8_t i_length_size_of_traf_num;
    uint8_t i_length_size_of_trun_num;
    uint8_t i_length_size_of_sample_num;

    uint32_t *p_time;
    uint32_t *p_moof_offset;
    uint8_t *p_traf_number;
    uint8_t *p_trun_number;
    uint8_t *p_sample_number;
} MP4_Box_data_tfra_t;

typedef struct
{
    uint64_t i_duration;
    uint32_t i_timescale;
    uint16_t i_track_ID;
    uint8_t  i_es_cat;

    uint32_t FourCC;
    uint32_t Bitrate;
    uint32_t MaxWidth;
    uint32_t MaxHeight;
    uint32_t SamplingRate;
    uint32_t Channels;
    uint32_t BitsPerSample;
    uint32_t AudioTag;
    uint16_t nBlockAlign;
    uint8_t  cpd_len;
    uint8_t  *CodecPrivateData;
} MP4_Box_data_stra_t;

/*
typedef struct MP4_Box_data__s
{
    uint8_t  i_version;
    uint32_t i_flags;

} MP4_Box_data__t;

*/

typedef union MP4_Box_data_s
{
    MP4_Box_data_ftyp_t *p_ftyp;
    MP4_Box_data_mvhd_t *p_mvhd;
    MP4_Box_data_mfhd_t *p_mfhd;
    MP4_Box_data_sidx_t *p_sidx;
    MP4_Box_data_tfhd_t *p_tfhd;
    MP4_Box_data_trun_t *p_trun;
    MP4_Box_data_tkhd_t *p_tkhd;
    MP4_Box_data_mdhd_t *p_mdhd;
    MP4_Box_data_hdlr_t *p_hdlr;
    MP4_Box_data_vmhd_t *p_vmhd;
    MP4_Box_data_smhd_t *p_smhd;
    MP4_Box_data_hmhd_t *p_hmhd;
    MP4_Box_data_url_t  *p_url;
    MP4_Box_data_urn_t  *p_urn;
    MP4_Box_data_dref_t *p_dref;
    MP4_Box_data_stts_t *p_stts;
    MP4_Box_data_ctts_t *p_ctts;
    MP4_Box_data_stsd_t *p_stsd;
    MP4_Box_data_sample_vide_t *p_sample_vide;
    MP4_Box_data_sample_soun_t *p_sample_soun;
    MP4_Box_data_sample_text_t *p_sample_text;
    MP4_Box_data_sample_hint_t *p_sample_hint;

    MP4_Box_data_esds_t *p_esds;
    MP4_Box_data_avcC_t *p_avcC;
    MP4_Box_data_dac3_t *p_dac3;
    MP4_Box_data_dvc1_t *p_dvc1;
    MP4_Box_data_enda_t *p_enda;
    MP4_Box_data_gnre_t *p_gnre;
    MP4_Box_data_trkn_t *p_trkn;
    MP4_Box_data_iods_t *p_iods;
    MP4_Box_data_pasp_t *p_pasp;
    MP4_Box_data_trex_t *p_trex;
    MP4_Box_data_mehd_t *p_mehd;
    MP4_Box_data_sdtp_t *p_sdtp;

    MP4_Box_data_tfra_t *p_tfra;
    MP4_Box_data_mfro_t *p_mfro;
    MP4_Box_data_stra_t *p_stra;

    MP4_Box_data_stsz_t *p_stsz;
    MP4_Box_data_stz2_t *p_stz2;
    MP4_Box_data_stsc_t *p_stsc;
    MP4_Box_data_co64_t *p_co64;
    MP4_Box_data_stss_t *p_stss;
    MP4_Box_data_stsh_t *p_stsh;
    MP4_Box_data_stdp_t *p_stdp;
    MP4_Box_data_padb_t *p_padb;
    MP4_Box_data_elst_t *p_elst;
    MP4_Box_data_cprt_t *p_cprt;

    MP4_Box_data_dcom_t *p_dcom;
    MP4_Box_data_cmvd_t *p_cmvd;
    MP4_Box_data_cmov_t *p_cmov;

    MP4_Box_data_moviehintinformation_rtp_t p_moviehintinformation_rtp;

    MP4_Box_data_frma_t *p_frma;
    MP4_Box_data_skcr_t *p_skcr;

    MP4_Box_data_rdrf_t *p_rdrf;
    MP4_Box_data_rmdr_t *p_rmdr;
    MP4_Box_data_rmqu_t *p_rmqu;
    MP4_Box_data_rmvc_t *p_rmvc;

    MP4_Box_data_0xa9xxx_t *p_0xa9xxx;
    MP4_Box_data_chpl_t *p_chpl;
    MP4_Box_data_tref_generic_t *p_tref_generic;
    MP4_Box_data_name_t *p_name;

    MP4_Box_data_tfrf_t *p_tfrf;
    MP4_Box_data_tfxd_t *p_tfxd;

    void                *p_data; /* for unknow type */
} MP4_Box_data_t;



/* the most basic structure */
typedef struct MP4_Box_s
{
    off_t        i_pos;      /* absolute position */

    uint32_t     i_type;
    uint32_t     i_shortsize;

    UUID_t       i_uuid;  /* Set if i_type == "uuid" */

    uint64_t     i_size; /* always set so use it */

    MP4_Box_data_t   data;   /* union of pointers on extended data depending
                                on i_type (or i_usertype) */

    struct MP4_Box_s *p_father; /* pointer on the father Box */

    struct MP4_Box_s *p_first;  /* pointer on the first child Box */
    struct MP4_Box_s *p_last;

    struct MP4_Box_s *p_next;   /* pointer on the next boxes at the same level */

} MP4_Box_t;

/* Contain all information about a chunk */
typedef struct
{
    uint64_t     i_offset; /* absolute position of this chunk in the file */
    uint32_t     i_sample_description_index; /* index for SampleEntry to use */
    uint32_t     i_sample_count; /* how many samples in this chunk */
    uint32_t     i_sample_first; /* index of the first sample in this chunk */
    uint32_t     i_sample; /* index of the next sample to read in this chunk */

    /* now provide way to calculate pts, dts, and offset without too
        much memory and with fast access */

    /* with this we can calculate dts/pts without waste memory */
    uint64_t     i_first_dts;   /* DTS of the first sample */
    uint64_t     i_last_dts;    /* DTS of the last sample */
    uint32_t     *p_sample_count_dts;
    uint32_t     *p_sample_delta_dts;   /* dts delta */

    uint32_t     *p_sample_count_pts;
    int32_t      *p_sample_offset_pts;  /* pts-dts */

    uint8_t      **p_sample_data;     /* set when b_fragmented is true */
    uint32_t     *p_sample_size;
    /* TODO if needed add pts
        but quickly *add* support for edts and seeking */

} mp4_chunk_t;

 /* Contain all needed information for read all track with vlc */
typedef struct
{
    unsigned int i_track_ID;/* this should be unique */

    int b_ok;               /* The track is usable */
    int b_enable;           /* is the trak enable by default */
    bool b_selected;  /* is the trak being played */
    bool b_chapter;   /* True when used for chapter only */

    bool b_mac_encoding;

    es_format_t fmt;
    es_out_id_t *p_es;

    /* display size only ! */
    int i_width;
    int i_height;
    float f_rotation;

    /* more internal data */
    uint64_t        i_timescale;    /* time scale for this track only */
    uint16_t        current_qid;    /* Smooth Streaming quality level ID */

    /* elst */
    int             i_elst;         /* current elst */
    int64_t         i_elst_time;    /* current elst start time (in movie time scale)*/
    MP4_Box_t       *p_elst;        /* elst (could be NULL) */

    /* give the next sample to read, i_chunk is to find quickly where
      the sample is located */
    uint32_t         i_sample;       /* next sample to read */
    uint32_t         i_chunk;        /* chunk where next sample is stored */
    /* total count of chunk and sample */
    uint32_t         i_chunk_count;
    uint32_t         i_sample_count;

    mp4_chunk_t    *chunk; /* always defined  for each chunk */
    mp4_chunk_t    *cchunk; /* current chunk if b_fragmented is true */

    /* sample size, p_sample_size defined only if i_sample_size == 0
        else i_sample_size is size for all sample */
    uint32_t         i_sample_size;
    uint32_t         *p_sample_size; /* XXX perhaps add file offset if take
                                    too much time to do sumations each time*/

    uint32_t     i_sample_first; /* i_sample_first value
                                                   of the next chunk */
    uint64_t     i_first_dts;    /* i_first_dts value
                                                   of the next chunk */

    MP4_Box_t *p_stbl;  /* will contain all timing information */
    MP4_Box_t *p_stsd;  /* will contain all data to initialize decoder */
    MP4_Box_t *p_sample;/* point on actual sdsd */

    bool b_drms;
    bool b_has_non_empty_cchunk;
    bool b_codec_need_restart;
    void      *p_drms;
    MP4_Box_t *p_skcr;

} mp4_track_t;

static inline size_t mp4_box_headersize( MP4_Box_t *p_box )
{
    return 8
        + ( p_box->i_shortsize == 1 ? 8 : 0 )
        + ( p_box->i_type == ATOM_uuid ? 16 : 0 );
}

#define MP4_GETX_PRIVATE(dst, code, size) do { \
    if( (i_read) >= (size) ) { dst = (code); p_peek += (size); } \
    else { dst = 0; }   \
    i_read -= (size);   \
  } while(0)

#define MP4_GET1BYTE( dst )  MP4_GETX_PRIVATE( dst, *p_peek, 1 )
#define MP4_GET2BYTES( dst ) MP4_GETX_PRIVATE( dst, GetWBE(p_peek), 2 )
#define MP4_GET3BYTES( dst ) MP4_GETX_PRIVATE( dst, Get24bBE(p_peek), 3 )
#define MP4_GET4BYTES( dst ) MP4_GETX_PRIVATE( dst, GetDWBE(p_peek), 4 )
#define MP4_GET8BYTES( dst ) MP4_GETX_PRIVATE( dst, GetQWBE(p_peek), 8 )
#define MP4_GETFOURCC( dst ) MP4_GETX_PRIVATE( dst, \
                VLC_FOURCC(p_peek[0],p_peek[1],p_peek[2],p_peek[3]), 4)

#define MP4_GETVERSIONFLAGS( p_void ) \
    MP4_GET1BYTE( p_void->i_version ); \
    MP4_GET3BYTES( p_void->i_flags )

#define MP4_GETSTRINGZ( p_str )         \
    if( (i_read > 0) && (p_peek[0]) )   \
    {       \
        const int __i_copy__ = strnlen( (char*)p_peek, i_read-1 );  \
        p_str = malloc( __i_copy__+1 );               \
        if( p_str ) \
        { \
             memcpy( p_str, p_peek, __i_copy__ ); \
             p_str[__i_copy__] = 0; \
        } \
        p_peek += __i_copy__ + 1;   \
        i_read -= __i_copy__ + 1;   \
    }       \
    else    \
    {       \
        p_str = NULL; \
    }

#define MP4_READBOX_ENTER( MP4_Box_data_TYPE_t ) \
    int64_t  i_read = p_box->i_size; \
    uint8_t *p_peek, *p_buff; \
    int i_actually_read; \
    if( !( p_peek = p_buff = malloc( i_read ) ) ) \
    { \
        return( 0 ); \
    } \
    i_actually_read = stream_Read( p_stream, p_peek, i_read ); \
    if( i_actually_read < 0 || (int64_t)i_actually_read < i_read )\
    { \
        msg_Warn( p_stream, "MP4_READBOX_ENTER: I got %i bytes, "\
        "but I requested %"PRId64"", i_actually_read, i_read );\
        free( p_buff ); \
        return( 0 ); \
    } \
    p_peek += mp4_box_headersize( p_box ); \
    i_read -= mp4_box_headersize( p_box ); \
    if( !( p_box->data.p_data = calloc( 1, sizeof( MP4_Box_data_TYPE_t ) ) ) ) \
    { \
        free( p_buff ); \
        return( 0 ); \
    }

#define MP4_READBOX_EXIT( i_code ) \
    do \
    { \
        free( p_buff ); \
        if( i_read < 0 ) \
            msg_Warn( p_stream, "Not enough data" ); \
        return( i_code ); \
    } while (0)


/* This macro is used when we want to printf the box type
 * APPLE annotation box is :
 *  either 0xA9 + 24-bit ASCII text string (and 0xA9 isn't printable)
 *  either 32-bit ASCII text string
 */
#define MP4_BOX_TYPE_ASCII() ( ((char*)&p_box->i_type)[0] != (char)0xA9 )

static inline uint32_t Get24bBE( const uint8_t *p )
{
    return( ( p[0] <<16 ) + ( p[1] <<8 ) + p[2] );
}

static inline void GetUUID( UUID_t *p_uuid, const uint8_t *p_buff )
{
    memcpy( p_uuid, p_buff, 16 );
}

static inline int CmpUUID( const UUID_t *u1, const UUID_t *u2 )
{
    return memcmp( u1, u2, 16 );
}

static inline void CreateUUID( UUID_t *p_uuid, uint32_t i_fourcc )
{
    /* made by 0xXXXXXXXX-0011-0010-8000-00aa00389b71
            where XXXXXXXX is the fourcc */
    /* FIXME implement this */
    (void)p_uuid;
    (void)i_fourcc;
}

static const UUID_t TfrfBoxUUID = {
                { 0xd4, 0x80, 0x7e, 0xf2, 0xca, 0x39, 0x46, 0x95,
                  0x8e, 0x54, 0x26, 0xcb, 0x9e, 0x46, 0xa7, 0x9f } };

static const UUID_t TfxdBoxUUID = {
                { 0x6d, 0x1d, 0x9b, 0x05, 0x42, 0xd5, 0x44, 0xe6,
                  0x80, 0xe2, 0x14, 0x1d, 0xaf, 0xf7, 0x57, 0xb2 } };

static const UUID_t SmooBoxUUID = {
                { 0xe1, 0xda, 0x72, 0xba, 0x24, 0xd7, 0x43, 0xc3,
                  0xa6, 0xa5, 0x1b, 0x57, 0x59, 0xa1, 0xa9, 0x2c } };

static const UUID_t StraBoxUUID = {
                { 0xb0, 0x3e, 0xf7, 0x70, 0x33, 0xbd, 0x4b, 0xac,
                  0x96, 0xc7, 0xbf, 0x25, 0xf9, 0x7e, 0x24, 0x47 } };

MP4_Box_t *MP4_BoxGetSmooBox( stream_t * );

/*****************************************************************************
 * MP4_BoxGetNextChunk : Parse the entire moof box.
 *****************************************************************************
 *  The first box is a virtual box "root" and is the father of the boxes
 *  'moof' and, possibly, 'sidx'.
 *****************************************************************************/
MP4_Box_t *MP4_BoxGetNextChunk( stream_t * );

/*****************************************************************************
 * MP4_BoxGetRoot : Parse the entire file, and create all boxes in memory
 *****************************************************************************
 *  The first box is a virtual box "root" and is the father for all first
 *  level boxes
 *****************************************************************************/
MP4_Box_t *MP4_BoxGetRoot( stream_t * );

/*****************************************************************************
 * MP4_FreeBox : free memory allocated after read with MP4_ReadBox
 *               or MP4_BoxGetRoot, this means also children boxes
 * XXX : all children have to be allocated by a malloc !! and
 *         p_box is freed
 *****************************************************************************/
void MP4_BoxFree( stream_t *, MP4_Box_t *p_box );

/*****************************************************************************
 * MP4_DumpBoxStructure: print the structure of the p_box
 *****************************************************************************
 * Useful while debugging
 *****************************************************************************/
void MP4_BoxDumpStructure( stream_t *p_input, MP4_Box_t *p_box );

/*****************************************************************************
 * MP4_BoxGet: find a box given a path relative to p_box
 *****************************************************************************
 * Path Format: . .. / as usual
 *              [number] to specifie box number ex: trak[12]
 *
 * ex: /moov/trak[12]
 *     ../mdia
 *****************************************************************************/
MP4_Box_t *MP4_BoxGet( MP4_Box_t *p_box, const char *psz_fmt, ... );

/*****************************************************************************
 * MP4_BoxCount: find number of box given a path relative to p_box
 *****************************************************************************
 * Path Format: . .. / as usual
 *              [number] to specifie box number ex: trak[12]
 *
 * ex: /moov/trak
 *     ../mdia
 *****************************************************************************/
int MP4_BoxCount( MP4_Box_t *p_box, const char *psz_fmt, ... );

/* Internal functions exposed for MKV demux */
int MP4_ReadBoxCommon( stream_t *p_stream, MP4_Box_t *p_box );
int MP4_ReadBox_sample_vide( stream_t *p_stream, MP4_Box_t *p_box );
void MP4_FreeBox_sample_vide( MP4_Box_t *p_box );

#endif
